As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT GEAR RETRACTION, THE GREEN LIGHTS WENT OUT BUT THE RED GEAR UNLOCKED LIGHT REMAINED ILLUMINATED AND THE HYD PRESS LIGHT REMAINED ILLUMINATED. REPEAT WRITE UP. FOUND HYD SYS RELIEF VALVE OPENING AND REGULATING AT 1100 PSI. SHOULD BE 1500 PSI. REMOVED AND REPLACED RELIEF VALVE WITH REPAIRED UNIT. OPS AND LK CK GOOD. LT SWINGS WERE GOOD. WORKED IAW MM 29-11-06, 12-12-00, 32-30-00